نتایج جستجو برای: holstein male calves

تعداد نتایج: 344087  

ژورنال: تحقیقات دامپزشکی 2007

This study was done for identification of bacterial agents in calf pneumonia and determination of their antimicrobial susceptibility. Bronchoalveolar lavage was done on fourteen pneumonic and seven normal Holstein calves between 1-3 month old. In bacteriological examination on the fluid of bronchoalveolar lavage, Mycoplasma spp. were isolated from 4 (28.6%) pneumonic calves and 1 (14.3%) ...

2012
Jong-Hyeong Kim Lovelia L. Mamuad Chul-Ju Yang Seon-Ho Kim Jong K. Ha Wang-Shik Lee Kwang-Keun Cho Sang-Suk Lee

Effect of vitamin C (VC) on biochemical, hematological and cortisol profile of growing Holstein calves during summer was investigated. Eighteen calves between 14 and 16 weeks of age were divided equally into two groups. One group received a diet supplemented with VC (20 g/d) for 60 days, while other non-supplemented diet fed group served as a control (CON). The temperature humidity index (THI) ...

2012
E. E. Ahmed

Thirty-eight one day old female Holstein Friesian calves were raised on artificial rearing system. We are used in completely randomized design to evaluate the effects of using milk replacer on body growth and its economic feasibility. The results revealed that the pre-weaning weight gain, pre-weaning growth rate, weaning weight, post weaning growth rate and weight at final week (week twenty) of...

Journal: :Journal of Dairy Science 2021

ABSTRACT The consequences of supplementing Lys, Met, and Thr in milk replacers (MR) for calves have been widely studied, but scarce information exists about potential roles other AA (whether essential or not). effects on growth performance supplementation 4 different combinations a mixed ration (25.4% crude protein 20.3% fat) based skim powder whey concentrate were evaluated 76 Holstein male (3...

Journal: :علوم دامی ایران 0
کمال ارجاعی دانشجوی سابق ارشد دانشگاه تهران ابوالفضل زالی استادیار پردیس کشاورزی مهدی گنج خانلو استادیار پردیس کشاورزی مهدی دهقان بنادکی دانشیار پردیس کشاورزی

to evaluate the effects of wheat processing and dietary lipid sources on feedlot performance, carcass characteristics and fatty acids profile in meat of fattening calves, a number of 28 holstein male calves averaging in weight of 296±56kg were randomly allotted in four treatments (7 steers each). the study was conducted in a 2 × 2 factorial arrangement (two methods of wheat processing: steam fl...

Journal: :علوم دامی ایران 0
احمد محمدی دانشجوی کارشناسی ارشد، گروه علوم دامی، دانشکدة کشاورزی دانشگاه تربیت مدرس، تهران یوسف روزبهان دانشیار، گروه علوم دامی، دانشکدة کشاورزی دانشگاه تربیت مدرس، تهران حسن فضائلی دانشیار، مؤسسة تحقیقات علوم دامی کشور، حیدرآباد، کرج

in a completely randomized design, the effect of four iso-protein and iso-caloric diets containing different levels (0, 8, 16 and 24%) of processed broiler litter was studied on the fattening performance of 60 holstein male calves (with initial weight of 309±9kg and about 8-9 month age) for a period of 200 days. at the end of the experiment, all animals were slaughtered and then the carcasses, ...

Journal: :Harran üniversitesi veteriner fakültesi dergisi 2023

Early embryonic death, fetal resorption, mummification/maceration, abortion, and abnormalities are some of the causes losses in farm animals. In this study, it was aimed to make recommendations clinician veterinarians by investigating presence bovine viral diarrhea virus (BVDV), schmallenberg (SBV), akabane (AKAV) herpesvirus-1 (BHV-1) viruses calves with congenital anomalies. Brought Fırat Uni...

Journal: :Journal of Dairy Science 2021

Intact seaweed or extracts are used as feed supplements to improve the gut microbiome in young animals. Seaweeds provide functional polysaccharides, and they a good source of vitamins, minerals, phenolic compounds, all which relevant for immune system development. However, literature on effects dried supplementation development is limited, especially calves. This experiment aimed study effect f...

Journal: :PloS one 2015
Carla Foditsch Richard Van Vleck Pereira Erika Korzune Ganda Marilia Souza Gomez Eduardo Carvalho Marques Thiago Santin Rodrigo Carvalho Bicalho

Probiotics are a promising alternative to improve food animal productivity and health. However, scientific evidence that specific microbes can be used to benefit animal health and performance is limited. The objective of this study was to evaluate the effects of administering a live culture of Faecalibacterium prausnitzii to newborn dairy calves on subsequent growth, health, and fecal microbiom...

2017
Noemí Torrentera Ramsés Carrasco Jaime Salinas-Chavira Alejandro Plascencia Richard A. Zinn

OBJECTIVE Two trials were conducted in order to examine the effects of level of supplemental methionine on productive performance, dietary energetic, plasma amino acid concentration, and digestive function. METHODS Dietary treatments consisted of a steam-flaked corn-based diet containing urea as the only source of supplemental nitrogen supplemented with no supplemental amino acid (control), o...

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